Tapping screw reinforcement structure and method for defected compression member of historic building timber structure roof truss

Abstract

The invention discloses a tapping screw reinforcement structure and method for a defected compression member of a historic building timber structure roof truss. The tapping screw reinforcement structure comprises old wood, newly-filled supplementation wood and tapping screws. Defect digging-out structures are arranged on the old wood and are in an inverted trapezoid shape, the newly-filled supplementation wood is arranged inside the defect digging-out structures and matched with the defect digging-out structures in shape, and the newly-filled supplementation wood and the old wood are reinforced through the tapping screws. The defect digging-out structures are arranged on one side of the old wood in a digging-out mode or symmetrically arranged on the two sides of the old wood in a digging-out mode. The strength grade of the newly-filled supplementation wood is higher than or equal to that of the old wood, and the rift grain direction of the newly-filled supplementation wood is uniform with that of the old wood. The tapping screw reinforcement structure is suitable for reinforcing the compression member with symmetrical defects or asymmetrical defects, remarkable in construction effect, convenient to apply, economical, practical and simple in technology.

Description

technical field [0001] The invention relates to a reinforcement method for defects (insects, decay) of upper chords of wooden roof trusses of ancient buildings, and in particular to a self-tapping screw reinforcement structure and method for defects in compression rods of wooden roof trusses of ancient buildings . Background technique [0002] In China's modern and modern historical buildings, wooden structure roof truss buildings occupy a very important position. This change reflects the vicissitudes of China in the past century, and witnesses the mutual penetration and integration of Chinese and Western cultural elements in the building. However, the protection and restoration strategy of wooden components of modern Chinese historical buildings is still a difficult problem. As the carrier of recording the development of traditional buildings to modern buildings, wooden truss roofs especially need timely disease detection and proper restoration. Therefore, the study of woo...

AI Technical Summary

Problems solved by technology

[0003] Most of the current wooden structure repairs of historical buildings are irreversible, which eventually lead to irreversible damage and wanton replacement of the original wooden components during the restoration process, and some even face th

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